反应详情

To the product from Step B was added 4 mL of 1:1 dichloromethane/trifluoroacetic acid, and the solution was stirred for 60 min then concentrated in vacuo. The crude oil was purified by preparative thin layer chromatography using an Analtech® 1500 micron plate (10% methanol/ethyl acetate, 1% concentrated ammonium hydroxide) to give the title compound as a white solid. LC/MS 259.2 (M+1).

1. concentrationthen concentrated in vacuo
2. customThe crude oil was purified by preparative thin layer chromatography